How to keep the pool water clean without surprises.

Depending on the characteristics of the pool, the filtration equipment and the chemical used, keeping the pool water clean can be a simple task or, on the contrary, a real nightmare.

Just when we think we have everything under control, the pool water starts to become cloudy, or green spots start to appear on the tiles and we get frustrated because we are doing what has always worked.

In this sense, you should know that the pool is a dynamic place, which means that many factors, both internal and external, influence the way we keep the pool water clean: the sun and the influx of bathers are the most decisive. If one day there are more bathers than usual or it is warmer than usual, the water will need more chemicals to treat it, otherwise it may start to deteriorate.

Some of the parameters that you should take into account to keep the pool water clean are:

  • The water should be colourless, clear, visually and biologically clean.
  • The pH level should be between 7 and 7.6 for the chlorine to have a disinfecting effect.
  • The free chlorine should ideally be between 0.8 and 1.2 mg/l (or in accordance with the applicable regulations). This value should be measured at least daily using a chlorine and pH analyser kit.
  • In the case of tablets or tablets, place them in the specially designed tablet dispensers. If we place the tablets in the skimmers, we can break the pipes due to excess sediment.

Another factor in keeping the pool water clean is the quality of the chemicals used to treat it. In this regard, we rely on the DELSA brand of chemical products from the Spanish manufacturer ERCROS.

With more than 40 years manufacturing chemical products for swimming pools, the quality of their products is exceptional, all formulated and produced in Spain (most brands produce their products in China).


Keeping pool water clean

Specifically, to keep the pool water clean, the most recommended products at a particular level are:

200g tablets.

This product has everything to keep pool water clean: slow disinfectant, algaecide, flocculant, anti-limescale and stabiliser. It is also very good as a shock treatment or rapid disinfectant.

It is recommended to use 4 to 6 tablets of ISODELSA 5+1 BICAPA per week per 100 m3 of water. The effervescent action of the rapid coating immediately provides the required dose of chlorine to the pool. In addition, it is not recommended for use with diatomaceous earth filters.


keep the pool water clean


200gr. tablets

Chlorine in tablets, slow dissolving, perfect for keeping pool water clean and disinfected. Thanks to its high quality, using these chlorine tablets you can be sure that your pool water is free of bacteria or pathogens.

It is recommended to use 4 to 8 ISODELSA 200 tablets per week per 100 m3 of water.


keep the pool water clean



Highly concentrated algaecide product, to eliminate the dreaded algae and green spots that are generated in the pool when there has been a shortage of disinfectant product. In addition to killing algae, we also use it as a product to prevent them. With Algidelsa you can keep your pool water clean and free of algae.

It is recommended to add an initial dose of 2 litres of ALGIDELSA to the pool water once per 100 m3 of water. After that, for prevention, it is recommended to add 1 litre of ALGIDELSA per week or 150ml per 100 m3 of water per day.


keep the pool water clean


Try the quality of our products and get professional results.

Contact us at or call +34 965 726 208 and we will inform you without obligation, whether you are an individual or a professional.